*{
    margin: 0;
    padding: 0;
}
body{
    background-image: url("../image/16sucai_p567c108.JPG");
    background-repeat: no-repeat;
    background-size: 100%;
}
.top{
    position: relative;
    width: 100%;
    height: 150px;
}
.top>a>img{
    width: 5%;
    margin-left: 20px;
    margin-top: 20px;
}
.top>a>span{
    float: right;
    border: none;
    width: 80px;
    height: 30px;
    font-size: 20px;
    opacity: 0.6;
    color: white;
    border-radius: 5%;
    margin-top: 20px;
}
.top>a>span :hover{
    opacity: 0.9;
}
.center{
    position: relative;
    margin: 0 auto;
    width: 60%;
    background-color: white;
    opacity: 0.6;
    height: 550px;
    border-radius: 5%;
    overflow: hidden;
    clear:both;
}
.center:hover{
    opacity: 0.9;
}
.center>ul{
    list-style: none;
    padding-top: 60px;
}
.center>ul>li{
    height: 40px;
    line-height: 40px;
    padding-left: 5%;
    width: 100%;
}

.center>ul>li:nth-of-type(odd){
    background-color: antiquewhite;
}
.center>ul>li:nth-of-type(even){
    background-color: grey;
}
.center>ul>li>a{
    text-decoration: none;
    color: black;
}

.delete{
    border: none;
    float: right;
    line-height: 40px;
    padding-left: 10px;
    padding-right: 10px;
    margin-right:5%;
    background-color: grey;
}
.delete:hover{
    background-color: aqua;
}
.createdata{
    float: right;
    margin-right: 60px;
}
.count{
    float: right;
    margin-right: 60px;
}
.center>button{
    padding: 5px;
    margin-left: 27%;
    margin-top: 20px;
    display: inline-block;
}
